Cut and deburred the stringer spar caps. Clamped them to the spar and drilled them and deburred. This takes quite some time since there are many holes to drill. One side is 1/8th rivets and the other side is 3/16ths rivets. The edges of the spar were filed down since there are raised cut spots from the manufacturing process. These edges were deburred with a scotch brite wheel on a die grinder. All lightening holes were also deburred.